Siemens M20 Terminal Technical Description page 151

Siemens Information and Communication Products
6.5.11 Call forwarding
This is activated by the user with a code and password (see Chapter
• Call forwarding, unconditional
• Call forwarding on mobile subscriber busy
• Call forwarding on no reply
• Call forwarding on mobile subscriber not reachable
6.5.12 DTMF signalling
If the signal keys (*,#,0,1,...,9) are pressed during an existing connection, they are transmitted to the PLMN as DTMF
tones. DTMF tones are also audible for the user. DTMF digits are not saved on repertory keys.
Note: no DTMF tones are produced when pressing different keys from the ones specified above.
6.5.13 Reading an SMS message
Messages from the Short Message teleservice are received and saved to the SIM. The number of saved messages depends
on SIM card memory (typical number: at least 10). Received messages are signalled both by a message indicator in the
user's display ("M" in the right-hand margin) and with an appropriated message text when the terminal is idle.
The individual messages can be read with the 'SMS' function key. The most recent message is displayed by pressing the
SMS key once. The next message is displayed by pressing this key a second time, and so on. The display scrolls back to
the most recent message after displaying the oldest message, (last in – first out ring memory).
A message can be read in the following statuses:
• idle status (handset is on-hook)
• after off-hook
• when a call is in progress
Event Display text: 1
Display text: 2
SMS message [Idle display] M
SMS [x], [y] new
<SMS> [unread message1]
[unread message1]
<SMS> [unread message2]
[unread message2]
<SMS> [read message]
[read message]
Scrolling through a multiple-line message
Event Display text: 1
Display text: 2
<SMS> [Message/1
[Message/2
<WW> [Message/2
[Message/3
<WW> [Message...
[Message end
<WW> [Message/1
[Message/2
Note: multiple-line display texts are identified by a continuation character at the end of the second line (">").
Version 8 dated 15.03.00
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line
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line
st
line
nd
line
st
line]
nd
line]>
nd
line]
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nd
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6.4 "MMI features and user-defined settings" on page 143
M icon on the right-hand side of the display is visible
in all call processing statuses
The next unread message is displayed
After reading all new messages, messages already read
are displayed again
After reaching the end of the message, the display
scrolls back to the start of the same message
Man Machine Interface
).
A
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